Function find_or_else 

pub fn find_or_else<'a, T, F>(
    collection: &'a [T],
    fallback: &'a T,
    predicate: F,
) -> &'a T
where
    F: Fn(&T) -> bool,

Find the first item in a collection that satisfies a predicate. If no item satisfies the predicate, return the fallback value.

Arguments

• collection - A collection of items.
• fallback - Value to return if no item satisfies the predicate.
• predicate - A function that takes an item from the collection and returns a boolean.

Returns

• &T - Either the first item that satisfies the predicate or the fallback value.

Examples

use lowdash::find_or_else;
let numbers = vec![1, 2, 3, 4, 5];
let predicate = |x: &i32| *x == 3;
let result = find_or_else(&numbers, &0, predicate);
assert_eq!(result, &3);

use lowdash::find_or_else;
let numbers = vec![10, 20, 30, 40];
let result = find_or_else(&numbers, &0, |x| *x > 50);
assert_eq!(result, &0);

use lowdash::find_or_else;

#[derive(Debug, PartialEq)]
struct Person {
   name: String,
   age: u32,
}

let people = vec![
   Person { name: "Alice".to_string(), age: 25 },
   Person { name: "Bob".to_string(), age: 30 },
   Person { name: "Carol".to_string(), age: 35 },
];

let fallback = Person { name: "Unknown".to_string(), age: 0 };
let result = find_or_else(&people, &fallback, |p| p.age > 30);
assert_eq!(result, &Person { name: "Carol".to_string(), age: 35 });